The hypomania checklist has been developed as a screen by angst and colleagues. What specifically are you looking to measure? I know few more which might be relevant
If you search on google for "Mats Adler thesis" you will find a checklist that he has developed. His thesis is called "Measurement of Mania and Depression".
Adler is linked to Karolinska institutet in Stockholm, Sweden, and works as a chief physician, specializing in neuropsychiatry and bipolar disorder.